An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6685-00-808-6955
NSN 6320-01-476-7476
NSN 2925-00-480-1531
NSN 6610-00-081-2365
NSN 5998-01-521-3485
NSN 2925-01-512-4682
NSN 6645-01-116-3423
NSN 5915-01-057-2824
NSN 6610-00-213-8544
NSN 6130-01-042-6870
NSN 5905-01-208-0743
NSN 5965-00-863-6031